When it comes to renewables, the state of California has ambitious plans, with a goal to have a third of its electricity coming from renewables by the end of 2020, and half by 2030.
With this push for change, electric vehicles are increasingly being seen as a clean, alternative mode of transport than can help drive down emissions.
"The state of California has been extremely aggressive in… bringing in other states to have aggressive greenhouse gas goals and accomplishments: We at the city level are doing the same thing," Bob Hayden, from the San Francisco Department of the Environment, told CNBC's Sustainable Energy.
For Arcady Sosinov, who lives in California and drives an electric vehicle, switching from gas has proved to be a boon. "I started using an electric vehicle to save money," he said.
"I knew how cheap it is compared to gas vehicles, but why I really loved using it is because of access to HOV (high occupancy vehicle) lanes, because of special parking and because I never have to deal with any maintenance," Sosinov added.
A range of incentives have been brought in by the state to encourage the uptake of electric vehicles across California.